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首页> 外文期刊>Transportation research, Part D. Transport and environment >Assessing Methods For Comparing Emissions From Gasoline And Diesel Light-duty Vehicles Based On Microscale Measurements
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Assessing Methods For Comparing Emissions From Gasoline And Diesel Light-duty Vehicles Based On Microscale Measurements

机译：Assessing Methods For Comparing Emissions From Gasoline And Diesel Light-duty Vehicles Based On Microscale Measurements

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摘要

This paper assess whether a real-world second-by-second methodology that integrates vehicle activity and emissions rates for light-duty gasoline vehicles can be extended to diesel vehicles. Secondly it compares fuel use and emission rates between gasoline and diesel light-duty vehicles. To evaluate the methodology, real-world field data from two light-duty diesel vehicles are used. Vehicle specific power, a function of vehicle speed, acceleration, and road grade, is evaluated with respect to ability to explain variation in emissions rates. Vehicle specific power has been used previously to define activity-based modes and to quantify variation in fuel use and emission rates of gasoline vehicles taking into account idle, acceleration, cruise, and deceleration. The fuel use and emission rates for light-duty diesel vehicles can also be explained using vehicle specific power -based modes. Thus, the methodology enables direct comparisons for different vehicle fuels and technologies. Furthermore, the method can be used to estimate average fuel use and emission rates for a wide variety of driving cycles.

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